countersink solid rivets

[lotus 30]

I wonder if anyone can help me I am restoring an old speed boat constructed in aircraft ali. built in 1955
I need to do some repairs and the auto stop countersink tool i have the cutters are 100deg
the existing countersunk holes are 90 deg the cutting tips are removable i am wondering if there is anyone on the forum who could grind the tip to 90deg for me they have a 3/16" lead on them to keep them square to the hole.
If you know of a company that can do this for me please let me have the details.
Thank you andy b

 

[brightspark]

cant help but whats your boat an albatross

 

[500e]

http://www.aetools.co.uk/product-co...-100-degree-rplaceable-pilot-170-hole-710.php

http://www.yardstore.com/browse.cfm/4,4089.html

You do wonder at mark up's

 

[lotus 30]

Wow that was quick I can't stand strictly either lol Yes it is an albatross just finished one. and i went and bought another hull I need my bumps felt swore i would never do another boat. and i was sober at the time.

 

[lotus 30]

http://www.aetools.co.uk/product-co...-100-degree-rplaceable-pilot-170-hole-710.php

http://www.yardstore.com/browse.cfm/4,4089.html

You do wonder at mark up's

Thank you but i have 100deg ones i need them grinding to 90 deg

 

[Digger6135]

Thank you but i have 100deg ones i need them grinding to 90 deg

There are plenty available if you google 90 degree countersinks, all sorts of prices, these are quite common.

Digger6135

 

[500e]

http://www.yardstore.com/browse.cfm/4,6556.html
Noga also make one the people who deburing tools
Sort of metal Reva type boat

or
http://www.eternaltools.com/6mm-tungsten-carbide-burrs-90-degree-countersink
or
http://www.mtmc.co.uk/Trend-49/50-Three-Flute-90-Degree-Countersink-Cutter__p-35015.aspx

 

[lotus 30]

Thank you very much for the input but my tool has depth gauge with interchangeable tips with a nice 3/16" lead to help keep them square to the job.

 

[Wendelspanswick]

Thank you very much for the input but my tool has depth gauge with interchangeable tips with a nice 3/16" lead to help keep them square to the job.

I would have thought a saw sharpening service is what you need, I use a local one for regrinding TCT spindle moulder cutters when they get a knick in the edge. There always seems to be a pile of milling cutters from other customers in for regrinding.
I dropped a TCT wobble cutter and smashed a tooth, they brazed a new tooth on and ground it to match the other teeth for £5 which is their minimum charge.

 

[graffian]

There is a tool grinder called Raynor Tool Services Ltd, I have bought lot's
of resharpened carbide tools from them in the past, they would be able to do it.
I guess google will find them.

 

[the snooper]

View attachment 57269 Wow that was quick I can't stand strictly either lol Yes it is an albatross just finished one. and i went and bought another hull I need my bumps felt swore i would never do another boat. and i was sober at the time.

nice, what engine have you got in there ?

 

[lotus 30]

, what engine have you got in there ?[/QUOTE]
coventry climax FWE 1220 cc I enjoyed restoring the thing it is so well made all ali and aircraft riveted it was a b!!!±±er to spray inside the hull engine bay
but they do go well good fun on Cardiff bay no speed limit.


IF YOU CAN'T FIX IT WITH A HAMER IT'S ELECTRICAL